Randomness is incredibly useful. People often draw straws, throw dice or flip coins to make fair choices. Random numbers can enable auditors to make completely unbiased selections. Randomness is also ...

QR codes are becoming increasingly popular in a variety of settings. In 2010, Calvin Klein introduced the QR code on Billboards in Downtown New York and L.A.Those with smartphones have been able to do ...

Analysis of the source code for the UK contact tracing app has revealed no fewer than seven security flaws. One of these is that the random code assigned to users is only changed once a day, making it ...